Cultivator.



I PATENTED JUNE 12 L. E. WATERMAN.

GULTIVATOR. APPLICATION IILED JA NA. 1906.

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No. 823,239. PATENTED JUNE 12, 1906. L. E. WATERMAN.

OULTIVATOR.

AIPLIGA'IION rum) JAN. 4, 1906.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

LEWIS E. WATERMAN, OF ROCKFORD, ILLINOIS, ASSIGNOR TO EMERSON MANUFACTURING COMPANY, OF ROCKFORD, ILLINOIS, A CORPORA- TION OF ILLINOIS.

CULTIVATOR.

Patented June 12, 1906.

To all whom it may concern:

Be it known that I, LEWIS E. WATERMAN, a citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Cultivators, of which the following is a specification.

The object of this invention is to construct the lifting devices for the beams which can be operated without changing the working adjustment of the shovels supported by the beams.

In the accompanying drawings, Figure 1 is a plan view of one-half of a cultivator, showing my improvements in connection therewith. Fig. 2 is an elevation with portions in section. Fig. 3 is a perspective view of a section of the axle, showing my improvements in connection therewith. Fig. 4 is an elevation of a portion of the toothed quadrant.

The main frame of the cultivator shown in the drawings is of an old construction and comprises the axle 1, wheels 2, frame 3, tongue 4, beams 5, and shovels 6.

A toothed quadrant 7 is located on the upper horizontal portion of the axle 1 in a manner to rock thereon. To the quadrant is connected a brace-arm 8, the free end of which has a pivotal connection with the axle. This brace-arm serves to hold the quadrant in an erect positionthat is, at right angles to the length of the axle.

A hand-lever 9 has a pivotal connection with the quadrant and is provided with the usual dog and thumb-lever connection with the quadrant.

From the quadrant projects an arm 10, which extends rearward therefrom. 'A link 11 has one end pivotally connected to the free end of the arm 10, and to its forward end is connected a spring 12. The other end of the spring 12 has an adjustable connection with the main frame 3.

To the hand-lever 9 is connected a bracket 13, provided with a series of holes. A rod 14 has one end in engagement with one of the holes in the bracket 13, and its other end has a chain 15, connecting it with the beam 5.

The quadrant 7 has a slot 16. The walls around it are provided with serrations 17. A stop 18 is adjustable in the lengthwise direction of the slot and clamped to the serrated face by the thumb-screw 19. This stop 18 is located over the link 11, as shown at Fig. 1. When the parts are in the position shown at Figs. 1 and 2, the stop 18 will come in contact with the upper edge of the link, thereby limiting the forward movement of the quadrant.

The working depth of the shovels is regulated by the adjustment of the hand-lever in its connection with the toothed quadrant.

The beams and shovels supported thereby may be raised by means of the hand-lever that is, the rearward movements of the handlever will rock the quadrant on its pivotal connection with the axle into the position shown at Fig. 3, which will throw the pivotal point between the link 11 and arm 10 below the axle, thereby holding the beam and shovels elevated. This raising movement is accomplished without changing the working adjustment of the hand-lever in its connection with the quadrant.

The stop 18 may be moved near the lower end of the slot 16, so that when the link 11 engages it the pivotal point between the link 11 and arm 10 will be just above the deadcenter, so that a very slight movement of the hand-lever rearward will cause the pivoted point to pass below the dead-center, when the spring 12 will raise the beam and shovels connected thereto.

By adjusting the stop to the lower end of the slot the link coming in contact with it will limit the forward movement of the quadrant, and the pivotal point between the link and arm 10 will be just below the dead-center, so that a slight upward movement of the beam will permit the spring to act which will rock the quadrant and raise the beam.

I claim as my invention In a cultivator, the combination of an axle, a toothed quadrant supported thereon in a manner to permit of a rocking movement, a hand-lever having an engagement with the quadrant, a beam, a connection between the hand-lever and beam, a link pivotally connected to the quadrant, a spring forming a connection between the link and a stationary support, and an adjustable stop carried by the quadrant with which the link engages.

LEWIS E. WATERMAN.

Witnesses: A. O. BEHEL, g E. BEHEL. y f g IOO 

